Cutting apparatus for harvesters



FFCEE.

PATENT DENNIS MIOHAELS, OF HOPEDALE, OHIO.

'CUTTING APPARATUS FOR HARVESTERS.

SPECIFICATION forming part of Letters Patent No. 321,837, dated July 7, 1885. Application filed September 2, 1884. (No model.)

To all whom it may concern.-

Be it known that I, DENNIS MIOHAELS, a citizen of the United States, residing at Hopedale, in the county of Harrison and State of Ohio, have invented certain new and useful Improvements in Cutting Apparatuses for Harvesters; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to the cutting apparatus of mowers and reapers; and it has for its object to so construct the head of the inner shoe as to take up all wear on the knife-bar where the latter works through the said inner head.

To this end the invention consists, essentially, in two wear-plates held and adjustable on the head of the inner shoe vertically onto suitable ledges projected from the knife-bar,

and laterally toward the knuckle of the knifebar, by which it pivots to the pitman.

It consists, further, in other improvements, as will be more fully described and claimed.

In the drawings, Figure 1 is a plan view of the head of the inner shoe provided with my improvements. Fig. 2 is a sectional view thereof on line w 41;, Fig. 1. Fig. 3 is a detail View of the inner side of one of the wearplates and its supporting-frame.

The head of the inner shoe,A,may be of any of the common forms, and is provided on opposite sides of the knife-bar way with upright supports or frames B, which have inwardlyprojecting flanges or wings b at their top edges, and b at their end edges, as will be understood from Figs. 2 and 3. The main plate of each of these frames is provided with vertically-elongated slots B, preferably two in number, and suited to permit the passage of the threaded bolts projected from the wearplates. The end flanges, I), prevent longitudinal displacement or strain on the wearplates, and the top flange, 1), serves to deflect inwardly the thin packing-strips presently described. The knife-bar O is provided with knives G, and has a knuckle, '0 by which to couple with the connecting-pitman G The portion of the knife-bar which operates between the upright frames is provided with the flanges or ribs 'O 0 projected toward each of said frames and under the wear-plates. I prefer to make the forward plate sufficiently long to project into the horizontal recess, a, formed in the inner shoe, A, in order to further steady the motion of the knife-bar, as will be understood. The wear-plates D D are fitted to and held in the upright frames,

'and have their lower edges adjustable onto the flanges G" O. In the upright frames, between the main plate thereof and the wearplates, I arrange packing-strips E, of rubber,

textile fabric, or other suitable substance,

which is by preference made sufficiently wide to extend inwardly and bear at e on the knuckle of the knife-bar,and thus prevent the same from dragging grass or straw into the space between the wear-plate frames, and so clogging the machine. By duplicating these packings behind the wear-plates the plates may be set to or from the knuckle of the drag bar. The wear-plates are provided with bolts D, projected outward through slots B, and fitted to receive nuts F, which clamp against the frames B on each side of said slots and hold the wear-plates to any proper position to which they may be adjusted when the said nuts are loosened. By this adjustment the wear-plates may be at all times fitted snugly against the lateral bearing-flanges of the knifebar, holding the same closely, and assuring a smooth, easy running thereof, as will be understood.

By filling in packing, as before referred to, the wear-plates may be adjusted up against the knuckle of the knife-bar, to prevent lateral vibration or motion thereof. The wearing or rubbing parts may be lubricated in any manner, which will readily suggest itself to the operator.

The packing in rear of the wear-plates eases the lateral stroke or jar of knuckle G against the plates and prevents fracture of the parts.

Having thus described my invention, what I'claim, and desire to secure by Letters Patent, 1s-

1. In a harvesting maehine, the herein-described inner shoe provided with upright supports on opposite sides of its cutter-bar way, and wear-plates held to the inner side of said supports and adjustable vertically, substantially as set forth.

2. The combination, with the shoe provided with upright supports B, having slots B, of

the knife-bar provided with flanges C, the wear-plates D. having bolts D extended through and adjustable vertically in slots 1 and the retaining-nuts, substantially as set forth.

3. The combination, with the inner shoe and the knife-bar and its knuckle traversing thereon, of the upright supports arranged on opposite sides of the knife-bar and knuckle, and the flexible strips 1*], extended outward from the upper ends of said supports toward 

